一类微分方程解的存在性的证明

The Existence Proof of the Solution to a Special Differential Equation

用一种不同于常微分方程教科书中的方法,证明方程x(n)+a1x(n-1)+a2x(n-2)+…+an-1x′+anx=bmtm+…+b1t+b0具有多项式函数形式的解.

The equation of x^（n）＋a1x^（n-1）＋a2x^（n-2）＋…＋an-1x＇＋anx=bmt^m＋…＋b1t＋b0 has a solution in the form of polynomial function, which is different from the method given in the text book.